M4 : Westbound : J41 Pentyla/Baglan to J42 Earlswood :

M4 : Westbound : J41 Pentyla/Baglan to J42 Earlswood : Carriageway maintenance : Road closed : Diversions in place : 03/03/26-07/03/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 03/03/2026

End Date: 07/03/2026

First Published

27/02/2026 16:52

Reference Number

RNMDA_2026127674

Last Updated

27/02/2026 16:52

Source Agency

Welsh Government

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